THE ants of Borneo go out with a bang, thanks to a body built to blow up during a suicidal death grip. They are known to grab enemy ants and expel a lethal sticky substance in a final act of altruistic defence of their colony which kills attacker and intruder. Now, Johan Billen of the Catholic University of Leuven (KUL), Belgium, and his team have shown just how much the ants invest in their suicide strategy - with the largest gland reservoirs yet known in ants.